v3.26.1
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' INVESTMENT - USD ($)
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Balance at beginning of period $ 2,487,829,724 [1] $ 2,472,099,655
Issuance of common stock from stock plan transactions (in shares) 800,000  
Issuance of common stock from stock plan transactions $ 2,103,787 4,933,702
Repurchases of common stock (in shares) (3,300,000)  
Repurchases of common stock $ (71,607,925) (76,006,073)
Stock-based compensation expense related to stock options, employee stock purchases and restricted stock 10,406,965 8,671,763
Dividends declared (25,557,374) (26,977,308)
Capital contributions, net   442,500
Net income (loss) 98,455,143 [2] 94,874,045
Other comprehensive income 954,846 1,379,219
Balance at end of period 2,502,585,166 2,479,417,503
Parent    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Balance at beginning of period 2,487,829,724 2,467,950,655
Issuance of common stock from stock plan transactions 2,103,787 4,933,702
Repurchases of common stock (71,607,925) (76,006,073)
Stock-based compensation expense related to stock options, employee stock purchases and restricted stock 10,406,965 8,671,763
Dividends declared (25,557,374) (26,977,308)
Net income (loss) 98,455,143 [2] 94,874,045
Other comprehensive income 954,846 1,379,219
Balance at end of period $ 2,502,585,166 $ 2,474,826,003
Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Balance at beginning of period (in shares) 215,445,024 227,207,472
Balance at beginning of period $ 12,926,701 $ 13,632,448
Issuance of common stock from stock plan transactions (in shares) 787,593 709,996
Issuance of common stock from stock plan transactions $ 47,256 $ 42,600
Repurchases of common stock (in shares) (3,252,696) (3,100,351)
Repurchases of common stock $ (195,162) $ (186,021)
Balance at end of period (in shares) 212,979,921 224,817,117
Balance at end of period $ 12,778,795 $ 13,489,027
Additional  Paid-In Capital    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Balance at beginning of period 1,008,589,267 1,010,440,420
Issuance of common stock from stock plan transactions 2,056,531 4,891,102
Repurchases of common stock (13,336,052) (12,246,386)
Stock-based compensation expense related to stock options, employee stock purchases and restricted stock 10,406,965 8,671,763
Balance at end of period 1,007,716,711 1,011,756,899
Retained  Earnings    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Balance at beginning of period 1,466,046,002 1,450,287,128
Repurchases of common stock (58,076,711) (63,573,666)
Dividends declared (25,557,374) (26,977,308)
Net income (loss) 98,455,143 [2] 94,874,045
Balance at end of period 1,480,867,060 1,454,610,199
Accumulated  Other Comprehensive Income (Loss)    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Balance at beginning of period 267,754 (6,409,341)
Other comprehensive income 954,846 1,379,219
Balance at end of period 1,222,600 (5,030,122)
Equity Attributable to Noncontrolling Interests    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Balance at beginning of period 0 4,149,000
Capital contributions, net   442,500
Balance at end of period $ 0 $ 4,591,500
[1] The Condensed Consolidated Balance Sheet at December 31, 2025 has been derived from the audited Consolidated Financial Statements at that date, but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.
[2] Net income (loss) excludes net loss attributable to redeemable non-controlling interest of $34,084 for the three months ended March 31, 2026 (see Note 16).